Compared to the Prime units - they are cheaper, have less parts (1 less diffraction grating filter, no cooling fan, etc.), but I liked the way the modules were nearly already aligned to mix our red and green!

Essentially, the Red and Green beams hit in the same "Y-Axis" position, just a couple-few millimeters apart from each other on the "X-Axis" within the dichroic filter. So - I see there being 2 options to make them blend:
1) Reposition the filter
2) Adjust the laser modules

I honestly do not know if option 1 would have been easier -but this needs to be very precise, and I felt option 2 would provide more 'fine tuning' in the end. I might try this again using option 1 at some point...¯\_(ツ)_/¯

I swapped the red module with a LG 24x DVD burner diode/Aixiz module and new driver to brighten up the red output.

Some wooden blocks / shims and glue - and we have a yellow beam for 20 bucks (+ cost of Red module). A few more pics for fun:

Great point...and could possibly lend to option 1 (moving the lens as opposed to 'aiming' the modules) being the better option?? As not only did I adjust the direction of the red module, I also adjusted the green - and if its not hitting the lens at 45 degrees - that could create more of that undesired reflection (loss) ? Someone keep me honest here, please

Well-known member

Great point...and could possibly lend to option 1 (moving the lens as opposed to 'aiming' the modules) being the better option?? As not only did I adjust the direction of the red module, I also adjusted the green - and if its not hitting the lens at 45 degrees - that could create more of that undesired reflection (loss) ? Someone keep me honest here, please